There's a video game the protagonist receives called "Innocent Sin Online", a fictional MMORPG. Playing it will merit you the S. Link of the Hermit with a character who's screen name is "Maya". The name Maya is the name of one of the main characters in "Persona 2: Innocent Sin", as well as the protagonist in the follow up game "Persona 2: Eternal Punishment". The protagonist also has the screen name of "Tatsuya", referencing the protagonist of "Innocent Sin".